topic Link Error: L1822: Symbol TO1_Disable in file in 8-bit Microcontrollers

Link Error: L1822: Symbol TO1_Disable in file

FordFairlaneBen — Thu, 24 Aug 2006 23:41:36 GMT

Hello:

I´m ussing a MC9S08AW16. I have created a bean called TO1 which is a TimerOutBean. I have selected the methods Enable, Unable and SetValue and I add this methods to my code in the next way:

#define BEEP_ON TO1_Enable()
#define BEEP_OFF TO1_Disable()

Then I use this macros in the next way:

void ResetBeepX(void)
{
TiempoON=0;
TiempoOFF=0;
NumeroBeeps=0;
TimeoutBeep=0;
Beep.BYTE=0;
BEEP_OFF;
}

When I compile I receive this message:

Link Error : L1822: Symbol TO1_Disable in file C:\proyecto\teka\KAG\KAG 6300\software\KAG6300_Data\Standard\ObjectCode\beep.C.o is undefined

Link Error : L1822: Symbol TO1_Enable in file C:\proyecto\teka\KAG\KAG 6300\software\KAG6300_Data\Standard\ObjectCode\beep.C.o is undefined

Link Error : Link failed

What are the causes than can yield this problem?

Please, I need help because I have spent lot of time and I can solve this problem.

Thanks a lot

Re: Link Error: L1822: Symbol TO1_Disable in file

Alban — Fri, 25 Aug 2006 00:16:11 GMT

Hello,

These errors mean you did not declare the functions TO1_ ...
You need to include the file where these functions are declared.
And at the start of this file, you need to declare the prototype of these functions starting with "extern" to explain they are declared somewhere else and are not a new object.

Code:

extern void TO1_Enable(void);

Hope this helps,
Alban.

Re: Link Error: L1822: Symbol TO1_Disable in file

FordFairlaneBen — Fri, 25 Aug 2006 13:15:30 GMT

Hello again:

I have tried what you explain but I am getting the same error. I don´t know what it´s happening but I´m becoming crazy. For more information I have to say that when I add the bean to my proyect, draging and droping, it seems that methods Enable and Disable aren´t recognized because they don´t appear in light blue, they remain in black.

Thanks a lot.

Re: Link Error: L1822: Symbol TO1_Disable in file

CrasyCat — Fri, 25 Aug 2006 15:03:21 GMT

Hello

According to the messages you are getting you are referencing symbols called TO1_Disable and TO1_Enable in file beep.C.

You need to provide a definition for these symbols or remove the references if you do not need them.

I do not have enough information to investigate further than that.

CrasyCat

Re: Link Error: L1822: Symbol TO1_Disable in file

alex_spotw — Sat, 26 Aug 2006 02:12:24 GMT

Hi:

You need to explicitly indicate Processor Expert to generate the _Enable and Disable methods for your bean. In the Processor Expert tab (left hand) double click in the TI0 bean. A list of all methods appear. The ones with a red X cross won't be generated. The ones with a green check mark will be generated. Simply double click the Enable and Disable methods and they will be generated.

You will need to run full code generation again, though.

Regards,

Alex.

Re: Link Error: L1822: Symbols are undefined

CrasyCat — Wed, 24 Dec 2008 09:26:13 GMT

This is not related to the original thread. Creating a new thread for the new question.